Wheel construction.



'ac-tuin oi. the punch BEST AVAlLABLE COF" annular `projection 26, formed by impressing into the hub the annular groove '27, the niet-al olf the rini 2G being adapted to be f.:rei-laid "waged, or riveted upon the web el" the. `wheel. -Very importantly a shouldered pr ctioii 2S is formed caused by a .shearing and pressing downward of the metal ogt the blank. bythe die, as 17. this llange :2S being considerably wider or greater in diameter than was tlieoriginal blank, as well shownv in Fig. 6 wherein the lien. onal part 1Sa indicates the original construction and diameter of the blank.

importantly also there are thus provided l scribed, said hub having a flange polygonal j ioiiits .29 in the. {lange or annular projection adapted to engage the web of; the wheel and .lo-ck. the hub against axialf movement st. ucrlon a' relatively wide flange or support 528 is provided troni a minimum of metal, it being pointed out that if the saine diameter of 'flange were provided from round stock in a. lathe the stock would have to be of the,

diameter ot' the flange itself.

In asseniblingthe wheel blank and hub I. employ :i suitable punch press having the die 3G provided with a centering pin 31 over which the hub is placed and having also the centering flanget overwliich the rim 25a of the wheel lits. Thus the hub 18 and the wheel Q5 are heldpositively con- .eentricallyz The punch 33 is provided with the ilange 231i which fits over the outside of the rim of the wheel and is 'provided also vwith the central swaging punch 35 which, on descending, swages over the projection the hub and wheel together while they are held in. concentric registration. In this con'' ncction it pointed out that throughtlie 33 in assembling the hub and wheel the corners,y as flanges of polygonal shaped hubs become inclined upward, or toward the web 24, and, as they extend outwardly from tliea'xis beyond the overturned rib 26a they indent the metal of the. web 2l of the wheel, as shown in Fig. 10, thereby locking tliehub additionally gainst rotation relative to the web 24.

Fig. 1.1 illustrates a hub having a polygonal projection 21a and flange Q8, the projection Q1 being adapted to interfitwith a hole ot like shape in the web of the wheel, and -thus provid-ing a positive driving relation between the huband the web, more iu'iportant in wheels of such construction win-re they :nay be emploved as pulleys or in other applications of driving force. The hub ot' Fig. l1 may be formed by dies and assembled with the wheel web as in 'the case olf the preferred `form described. -Hand or power tools may be employed in each of the several operations.

respect to the wheel Q5. By" this con 26, as indicated at 26, thus locking 29,- on the with a projection, as 2G, and a stronger construction thereby obtained.

I claim: v .1.11. A hub tor'a' wheel of the .class detion being adaptedtobe riveted upon such 2. A hub for. a nheel ofthe class described, said hub having a flange interme diate its ends, and having a stem-like projection polygonal in outline 'extending axially from said tiangeasa'id flange being adapted to support the web'of a wheel, said projection being adapted to be riveted upon` such web.

3. A hub for a wheel" of the class de'- scribed, 4said hub having a flange pol 'gonal in outline intermediate its ends, and aving a steni-like projection extend-ing axially from said flange, said projection having an' annular groove'fin its free end and forming thereby air 'annular projection adapted to be swaged over* upon the web of the Wheel when such webis against said flange.

4. A wheeljof the class described having a hub with afflange polygonal in outline and a central stem projecting axially from said flange and passing through a. central hole in the web of the wheel, a portion of said stem being swaged over to engage the web between said flange and said turned over portion.

5. The method of making hubs for Wheels ofl the class described which consists in stamping a metallic blank polygonal in outline whereby a flange polygonal in outline and 'of greater diameter than that of the blank is formed intermediate the ends `of the blank and whereby'an axial projecthereof and extending troni said flange, said direction of the axis I last mentioned projccton being adapted to pass through the hohl, in the web of tho` wheel body. assomhhng the hub und Wheel body with the axial. projection of the hub extending through tho holo of the web and the web rQStng against Suid substantially radial. projection, and riveting a port-ion of Said axn )rojecon upon the web "wnie holding hofwheel body und-the huh in Concenirc relation to euch othr.

VGTR J. BAF/Nlu. Vtnsses T. D. BUTLER, M. M.' KRIESAND. 

